Home / 143,950,914.11-198,651,663.13-77,871,249.48

Finding the Fourth Proportional to 143,950,914.11, 198,651,663.13 and 77,871,249.48

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Solution

The fourth proportional to 143,950,914.11, 198,651,663.13 and 77,871,249.48 is: 107,462,000.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,950,914.11 : 198,651,663.13 = 77,871,249.48 : x
  2. Step 2: Convert to fraction form
    143,950,914.11/198,651,663.13 = 77,871,249.48/x
  3. Step 3: Cross multiply
    143,950,914.11x = 198,651,663.13 × 77,871,249.48
  4. Step 4: Simplify right side
    143,950,914.11x = 15,469,253,219,213,148
  5. Step 5: Solve for x
    x = 15,469,253,219,213,148/143,950,914.11
  6. Step 6: Final answer
    x = 107,462,000.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.